Attachment for internal



.Jan. 21, 1936. L. H. MESSINGER, JR., Er-AL Re. 19,828

ATTACHMENT FOR INTERNAL COkBUSTION ENGINES Original Filed March 15,1927. s Sheets-Sheet 1 -5 fllllk Au- LESTER -H. MES-SINGER JR.

Q A-LAWRENCE RIKER ASSIGNEE OF ANDREW L. RIKER DECEASED.

INVENTORS.

ATTORNEY Jab 21, 1936.

L. .H. MESSINGER. JR.. ET AL ATTACHMENT FOR'INTERNAL COMBUSTION. ENGINESOriginal Filed March 15) 1927 3 Sheets-Sheet 2 LESTER H. mzssmcsn JR'&ALAWRENCE RIKER ASSIGNEE 0F ANDREW RIKER accuser;

INVENTORS.

ATTORNEY Jan. 21, 1936.

H. MESSINGER JRQ ET AL Re. 19,828 ATTACHMENT FOR INTERNAL COMBUSTIONENGINES I s sheets-sheet s Original FiledMarch 15, 1927 Fly. 6

VII/II Zlll/ LESTER H. mcssmccn dad: A.LAWRENCE amen ASSIGNEE or ANDREWL.R|KER DECEASED.

INVENTORS W ATTORNEY Reic ued 21, 1936 I r 4 Re. 19,828

uN TEo STATES PATENT OFFICE ATTACHMENT FOB INTERNAL COMBUSTION ENGINESLester H. Messinger. In, Trumbull, Conn, and- Andrew L. Rikend'eeeased,late of Fail-field, Conn, 'by A..Lawrence Biker, assignee, Fairfleld,Com; said Messinger assignor to Messinger Devices, Incorporated, acorporation of Connecticut r s Original No. 1,890,791, dated December1a, 1932. Serial No. 175,484, March 15, 1am. Application for reissueApril 3, 1934, Serial No. 718,850

21 Claims. (01. 123-91 This invention relates to an' attachment forsupply line and the air inlet, the parts of the internal combustionengines, and has more parspecial device being positioned as in Fig. 1;tlcular reference to an attachment for the en- Fig. is a viewcorresponding with the disclogines of automotive vehicles. Theattachment sure of Fig. 4, the parts of the special device being hasbeen designed mainly for the purposes of positioned as in Fig. 2;

minimizing crank-case dilution, of saving gaso- Fig. 6 is a viewcorresponding with the discloline, and of preventing thedrawing oflubricating sure of Figs. 4 and 5, the parts of the special oil intocombustion chambers. device being positioned as in Fig. 3;

The invention presents features and charac- Fig. '7 is a sectional viewof the special device teristics of construction adapted to accomplish ason line I--1 in Fig. 4; and 10 the main and Specific objectsaccomplished by ig. 8 is a diagramm i v disclosing it mpl ym nt or theconstruction described, 'illusing system to be utilized in connectionwith the trated and claimed in the pending application for mp IiettersPatent of Lester H. Messinger, Serial No. The improvement includes a pdevice 102,347, filed April 215, 1926, in a manner diiferadapted to beautomatically actuated when the is ent from and in certain regards'animprovement throttle actuating means is retarded to close the over thedisclosure of said application, Y fuel supply control valve and to movethe ordi- The broad object of the present invention isto nary thr ttlvalve to w e p p n a d t provide in an internal combustion engine for anmaintain s fuel p y Valve closed and Said automotive, vehicle, a meanstor keeping a cylinthrottle valve p s s a p puls n of th so der orcylinders free of gasoline mixture at an engine is by a f e ot r t p o nin th times when the conditions are not favorable to engine y ASdisclosed. this Special lgnitlon. vice is an electromagnet, although aspecial de- A more specific object is to provide an automovice ofdifferent construction could be utilized.

tlve vehicle internal combustion engine including Actuation oi the pdevice to manipulate the 85 means for cutting all the supply of fuel t te fuel supply control valve to closed position andengine cylinders whenan automotive vehicle is t e throttle valve to Wide open Position whenthe propelling the engineor when the engine is raclng throttle actuatingmeans is retarded can be obwith a retarded throttle. tained in any oneof several difierent manners.

" With theabove objects in view, as well as others For p actuation o theSp d c may which will appear as the specification proceeds, e d c y ythe engine Speed with throttle the invention comprises the construction,artuating means retarded, as when the engine speed rangement, andcombination of parts as now to energizes the mag et to an ex entsumolent to r be fully described and as hereinafter to be speovercomethe action of the control (the spring) 30 clflcally claimed, it beingunderstood that the tending t h the f pply valve in p npo- 85 disclosureherein is merely illustrative and meant i n and the throttle adjustingdevices in inin no way in a limiting sense, changes in details p a v Psition. Or actuation. of e Sp of construction and arrangement of partsbeing device may be directly by v h speed (with permissible so long aswithin the spirit of the throttle actuating means retarded), as when the40 invention and the scope of the appended claims. veh cle speedsimilarly energi e the 0 0 Fig. 1 is a side elevational view disclosinth actuation of the special device may be obtained at improvement asapplied to an automotive vealltimes (with throttle actuating meansretardhicle, the throttle actuating means being shown ed) when theengine is in gear with the driven advanced and the fuel supply lineopen; wheels or axle of an automotive vehicle.

' Fig. 2 is a view corresponding with the disclo- With respect to thetire-W 8 0 rep s nts e 45 sure of Fig. 1, parts being omitted, showing tcylinders of an internal combustion engine. of a throttle actuatingmeans retarded and the fuel character ordinarily applied to automotivevethe air inlet open hlcle use, H the intake manifold, It the exhaustFig.3! is a view corresponding with the 'cliscl manifold, IS thecarburetor including the fuel insure of Fig. 2, showing the throttleactuating take or supply line It and the air inlet l5, and IP50 meansretarded, the fuel supply line closed, and t e throttle V v in t e itake a fo iethe air inlet open; cent the carburetor, between thecylinders and Fig. 4 is an enlarged sectional view, as on line the fuelintake line and air inlet of the carburetor. H in Fig. 'l, detailing aspecial device adapted A fuel supply control valve [1 'slidably arrangedto be automatically actuated to control the fuel in a boss I! of thefuelsupply line is convenient- 5 e head 21 upon the adjacent end of therod, the

coil spring normally holding the manipulating rod rearwardly of theengine. 33 is a collar upon the manipulating rod 24 adapted to engage abearing 25 to limit rearward movement of said manipulating rod.

A lever 29 having at one of its end portions an elongated slot 33 withwhich a stud 3| upon the manipulating rod 24 is conveniently pivotaliyassociated, has its end spaced from said rod fixed, as at 32, upon ashaft 33 rigidly carrying an armature 34 of a magnet 35 in a housing 36of ordinary or preferred structure. A coil spring 31 upon saidshaft 33has one of its ends made fast to the shaft, as at", and its other endsecured to a part of the housing, as at 39. See Fig. 7. The coil spring31 acts in 'the same direction as the coil spring 26, to normally holdthe lever 23 swung to its farthest rearward position.

Numeral 43 represents a throttle actuating rod slldabie in brackets 4|upon the engine, and 42 denotes a coil spring upon said rod, between abracket 4| and a collar 43, normally holding said throttle actuating rodin its retarded position (the location which would ordinarily place thethrottle of the carburetor in idling position) An equalizing bar 44pivoted at one end, as at 45, to the throttle actuating rod, is providedat its other end with an elongated slot 46 conveniently pivotallyassociated with a stud 41 upon the manipulating rod 24. The equalizingbar is also provided at about its mid-length with an elongated slot 43conveniently pivotally associated with a stud 49 upon a lever 56 fixedto the shaft 5| of the throttle valve l6, said shaft 5| being mounted inthe walls of the intake manifold. See Figs. 1, 2 and '3. 34 is a collarupon the throttle actuating rod 43 adapted to engage a'bracket 4| tolimit rearward movement of said throttle actuating rod.

It is the service of the coil springs 26 and 31 to hold the manipulatingbar 24 toward the left in Fig. 2 of the drawings to keep the fuel supplycontrol valve l1 in 'the open position of the fuel supply line l4, andalso to keep the equalizing bar 44 situated toward the left to locatethe lever 53 in the idling (nearly closed) position of the throttle l6,provided the throttle actuating rod is in retarded position as -in saidFig. 2.

Itis the service of the magnet, when energized to a suflicient extent,to actupon the armature 34 to rotate the shaft 33 and swing the lever toadvance the manipulating rod 24 to the closed position. of the valve l1,and also to swing the lower portion (see Fig. 3) of the equalizing bar44 forwardly to position the throttle approximately wide open, againstthe action of the coil springs 26 and 31 whereby to provide for a freeflow of air to the engine cylindersto the exclusion of explosivemixture. But one of these coil springs 26 and 31 is required, althoughboth may be employed to advantage.

The magnet 35 can be energized only when the throttle actuating rod isretarded, and said magnet is adapted to have sufficient power to actuatethe armature 34 against the action of the coil springs 26 and 31, oragainst either of said coil springs when one is employed, only when athrottled down engine is being driven by a force other than explosionsin its cylinders, as when a vehicle is driving a throttled down engine,or a throttled down engine is racing.

Referring more particularly to Fig. 8, I have there disclosed a wiringsystem to be utilized in connection with the improvement. In saidfigure, 52 is a generator, 53 is a lead wire from said generator to acontact 54, 55 is a lead wire from said contact 54 to the magnet 35, 56is a wire connecting the poles of said magnet, 51 is a' lead wire fromthe magnet to a second contact 53, the contacts 54 and 53 togethercomprising the fixed contacts of a switch 53 in said housing 36,

and 63 is a lead wire from said second contact 53 to the ammeter 6|.Clearly, with the contacts 54 and 53 unconnected, a current will fiowthrough the magnet, viathe leads described, from generator to ammeter,to energize the magnet, but by electrically connecting the fixedcontacts 54 and 53, thecircuit will be shunted, and the magnet will loseits energy.

Referring to Figs. 1 to 7, the switch 53 consists of the fixed contacts54 and 53 spaced apart a distance to allow a pivoted contact 62 to wipebetween said fixed contacts. Said fixed contacts are suitably supportedupon the housing, or the engine, in any convenient manner to beinsulatedfrom each other and from said housing, or engine, the contact53 desirably being a rectangular bar, andthe contact 54 being arectangular bar having an extension or spring arm 63 arranged parallelto the contact 53 and providing the desired resiliency for the fixedcontact members of the switch 55. The pivoted contact 62 is a lever orarm fixed, as at 64, upon a shaft 65 mounted in the housing 36 about theshaft 33. Numeral 66 represents a lever having one of its ends fixedupon said shaft 65, as at 61, and its other end provided with anelongated slot 63 conveniently pivotally receiving a stud 63 upon thethrottle actuating rod 40. The pivoted contact 62 is properly-insulatedfrom the shaft 65 in any convenient manner. As disclosed, said shaft 65is of insulating material.

It will be clear that the magnet 35 will be in the circuit having thegenerator and the ammeter at all times when the throttle actuating rodis retarded as in Figs. 2 and 3 to cause the pivoted contact 62 to beout of engagement with the fixed contacts 54 and 53 and the switch 53tothus be open, and that when the throttle actuating rod is so retarded,the fuel supply inlet will be closed and the throttle valve will be wideopen provided the magnet isenergized to an extent sufllcient to overcomethe action of the coil springv 26, or the and predetermined condition.For example, the

magnet can be stronger than the coil springs so long as the enginespeed. is at or above a predetermined speed, and said coil springs canact 'when the engine speed is below said predetermined speed. Thiscertain speed would ordinarily be that speed just above the speed atwhich the engine would normally operate with throttle actuating rodretarded, so that when this speed of engine is reached and said throttleactuating rod is retarded, as when a vehicle is driving the engine, orthe engine is racing, the fuel line is closed and the throttle valve iswide open, but at all othertimes the fuel line is open'and the isconnected with the shunt the circuit away from the 55 .to the pieces 86.A coil spring 88 fixed to ,i engine as at B9 and to an extension of theequal- 70 closed and the air the ignition circuit is designated 10. Itincludes throttle valve is positioned asin an ordinary engine now ofcommerce. Or the magnet can overcome the coil springs when the vehicle"speed has reached a certain speed. Or the magnet can overcome the coilsprings at all times when there is connection between an However, it ispreferable that the magnet be reengine and vehicle.

lated to the engine speed, because when the engine speed is the factorutilized, all of the circumstances of engine use when it is desired tofeed air to cylinders instead of gas mixture can be met, as hashereinbefore been fully set forth.

It has already been stated that the throttle valve is held in idling(almost closed) position 5 by. the equalizing-bar 44 when the coilsprings 26 and 31 are holding the manipulating rod 24 in rearwardposition and the throttle actuating rod is retarded. As the throttleactuating rod is advanced, the upperportion of the equalizing bar g0 44is swung forwardly, as in Fig. 1, to open said throttle valve a distancecorresponding to the amount to which said-throttle actuating rod isadvanced. Upon the initial movement forwardly of said throttle actuatingrod the current is as'shunted from the magnet to insure that the coilsprings will stably hold the lower end of the equalizing bar rearwardly,so that during all conditions of partially advanced or totally advancedthrottle actuating rod, the throttle It will function in precisely themanner as is now usual with ordinary explosive engines of co erce.

In view of the fact that the pivoted contact 62 throttle actuating rodto be brought intopositiveengagement with the fixed contacts 54 and 58as said throttle actuating rod is advanced, the circuit 'isshunted awayfrom the magnet and the fuel'inlet opens and the throttle adjustingdevices sive mixture at the commencement of the ad'- vancement of saidthrottle actuating rod.

It may be desirable that when the throttle actuating rod is advancedfrom retarded posi- 45 tion, the pivoted contact 62 be brought into en:

gagement with the fixed contacts 54 and 58 to magnet before theequalizing bar 44 is manipulated, to thus insure a feed of gaseous fuelat the commencement 0 of opening of the, throttle valve. In Fig. 3 wehave disclosed a modified construction for this purpose. As disclosed insaid Fig. 3. the throttle actuating rod is in two spaced apart pieces,denoted 85 and 86, arranged in a sleeve 81 fixed the izing bar 44 as at90, holds the piece 86 in rearward position, while a collar 84' limitsthe rearward movement of said piece". The coil spring so 42 holds thepieces! in rearward position, while a collarfll limits rearward movementof said piece 85. Clearly initial advancement of 'the piece 85 willcause the pivoted contact 62 teengage the fixed contacts 54 and 58, andfurther 65 advancement will cause the piece 85 to engage the piece 88 toadvance the equalizing bar.

It is preferable that open at all times when onithe dash of anautomotive vehicle, to a third contact 12 in the housing 36 adjacent andspaced 75 from the contact 58, and also includes said conarmature- 34 innipulating bar become inoperative simultaneously with the advancement ofsaid 40 throttle actuating rod to insure a feed of exploclosed andthrottle valve open,

the fuel supply line is tact 58: and the lead on to the ammeter u. As

clearly disclosed in Figs. 1 to I, the contacts 12 and B8 combine, inabout the manner as already described in connection with the contacts 54and B8, to provide fixed contacts of a switch 18 which includes apivoted contact 14 fixed upon the shaft 33 and attached to" the armature34, as at Iii, to move over said contacts with said armature and wipe 12and 58. The pivoted contact 14 is insulated from the shaft 23 and theany convenient way. Apin. 18 in the shaft it enters insulation 11 aboutsaid shaft, and a pin 18 fixes said pivoted contact 14 to saidinsulation. At 19 is an insulating bushirig having tight fit in a cavityat of the armature 34, numeral ll representing a screw passing throughthe pivoted. contact 14 and entering said insulating bushing. See Fig.7. The third contact 12 is suitably supported upon the housing, or theengine, in any convenient manner to be insulated from the contact 58 andfrom said housing, or engine. Said contact 12 is a rectangur lar barhaving an extension or spring arm 82 arranged parallel to the contact58, opposite the contact 54, and providing the desired resiliency forthe fixed contact members of the switch I! when wiped by the pivotedcontact 14.

The arrangement is such that when the coil springs 26 and 81, or one ofsaid springs when a single spring is employed, are holding the ma- 24and the lever 29 in their rearward positions to situate the fuel supplycontrol valve in open position and the throttle valve adjusting devicesin inoperative position, the armature 34 is so located that the pivotedcontact I4, fixed to said armature to move therewith, is

- that theignition circuit will be made at all times when explosivemixture is being fed to the cylinders, and will be broken at all timeswhen air free of explosive mixture is entering said cylinders. I

It may be found desirable at times when the throttle actuating rod isretarded and the engine is being propelled by avehicle, or is racing, toopen the fuel supply line and render the throttle valve adjustingdevices inoperative, as, for example, when it is desiredto utilize thevacuum or suction in an intake manifold to do work.

such as actuate a booster brake, or operate a wind shield cleaner. Thiscan be done by closing a switch, which would be the equivalent of theswitch 59, to shunt the circuit away from the magnet. The switch couldbe closed automatically, as when a booster brake was to be actuated.

or could be closed manually, as when a wind shield cleaner actuated byvacuum or suctiodin .the intake manifold was to be set into action.

It will be evident that the air admitted through the air inlet l5 of thecarburetor, with fuel line can be transmitted to the cylinders atapproximately atmospheric pressure.

It will also be evident that the keeping of gasoline out of thecylinders when a, vehicle is pro pelling an engine or the engine isracing and there is no need for utilizing gasoline to accomplishpropulsion, saves gasoline, and, in addition td-thi thefurnishing of airapproximately at atmospheric pressure to the cylinders under the lightload working conditions which exist therein when the engine ispropelled'by'a vehicle or is racing, provides pressure in the cylinderspreventing the drawing of lubricating oil into the combustion chambers.

While we have preferred to disclose the magnet 35 as the-special deviceto actuate the fuel control valve and the throttle valve, it is to beunderstood that other devices could be substituted.

What we claim is: -1. In an internal combustion engine, a carburetorincluding a fuel supply line and an air inlet, a cylinder, an intakemanifold between said carburetor and cylinder, a fuel control valve insaid fuel supply line, a throttle valve in said intake. manifold betweensaid carburetor and cylinder, means for holding said fuel control valveto open said fuel supply line, throttle actuating means for manipulatingsaid throttle valve' when said fuel supply line is open to cause a feedof explosive-mixture to said cylinder, and means for moving said fuelcontrol valve to close said fuel supply line and for simultaneouslymoving said throttle valve to open position.

2. In an internal combustion engine, a car'- buretor including a fuelsupply line and an air inlet, a cylinder, an intake manifold betweensaid carburetor and cylinder, a fuel control valve in said fuel supplyline, a throttle valve in said intake manifold between said carburetorand said cylinder, means for holding said fuel control valve to opensaid fuel supply line, throttle actuating means for manipulating saidthrottle valve when said fuel supply line is open to cause a feed ofexplosive mixture to said cylinder, mechanism responsive to the speed ofthe engine for moving said fuel control valve to close said fuel supplyline and for simultaneously moving said throttle valve to open position.

3. In an internal combustion engine, a carburetor including a fuelsupply line and an air inlet, a cylinder, an intake manifold betweensaid carburetor and cylinder, a fuel control valve in said fuel supplyline, a throttle valve in said intake manifold between said carburetorand said cylinder, means for holding said fuel control valve to opensaid fuel supply line, throttle actuating means for manipulating saidthrottle valve when said fuel supply line is open to cause a feed ofexplosive mixture to said cylinder, mechanism responsive to the speed ofthe engine operative while the throttle actuating means is in the idlingposition to move said fuel control valve to close said fuel supply lineand to simultaneously move said throttle valve to open position to admitair at practically atmospheric pressure to said cylinder, and meansoperated by said throttle actuating means to interrupt the operation ofsaid mechanism when said throttle valve is open wider than the idlingposition.

4. In an internal combustion engine, a carburetor including a fuelsupply line and an airs inlet, a cylinder, an intake manifold betweensaid carburetor and cylinder, a fuel control valve in said fuel supplyline, a throttle valve in said intake manifold between .said carburetorand said cylinder, means for holding said fuel control valve to opensaid fuel supply line, throttle actuating means for manipulating saidthrottle valve when i said fuel supply line is open to cause a feed ofexplosive mixture to said cylinder, mechanism responsive to the speed ofthe engine while the throttle actuating means in the idling position andthe engine is being operated by a force other than that of the explosionof mixture in said cylinder adapted to move said fuel control valve toclose said fuel supply line and to simultaneously move said throttlevalve to open position and means operated by said throttle actuatingmeans to interrupt the operation of said mechanism when said throttlevalve is open wider than the idling position.

5. In an internal combustion engine, a carburetor including a fuelsupply line and an air inlet, a cylinder, an intake manifold betweensaid carburetor and cylinder, a fuel control valve in said fuel supplyline, a throttle valve in said intake manifold between said carburetorand said cylinder, throttle valve actuating means, an equalizing barpivoted upon said throttle valveactuating means, said throttle valvebeingpivotally associated with said equalizing bar, a manipulatingmember associated with said fuel control valve and said equalizing bar,resilient means normally holding said manipulating member to locate saidfuel control valve in the open position of said fuel supply line andsaid equalizing bar to allow said throttle valve to be subject tomanipulations of said throttle actuating means,

and means for actuating said manipulating member against the action ofsaid resilient means to move said fuel control valve to close said fuelsupply line and to simultaneously move said throttle valve to the openposition of said intake manifold.

6. In an internal combustion engine, a carburetor including a fuelsupply line and an air inlet, a cylinder, an intake manifold between ofthe fuel supply line and said equalizing bar to allow said throttlevalve to be subject to manipu- 'lations of said throttle actuatingmeans, mechanism responsive to the speed of the engine for actuatingsaid manipulating member against the action of said resilient means tomove said fuelcontrol valve to close said fuel supply line and tosimultaneously move said throttle valve to the open position ofsaid-intake manifold, and

means operated by the throttle valve operating means to interrupt theoperation of said mechanism when the throttle valve is open wider thanthe idling position.

7: In an internal combustion engine, a carburetor including a fuel suppy line and an air inlet, a cylinder, an intake manifold between saidcarburetor and cylinder, a fuel control valve in said fuel supply line,a throttle valve in said intake manifold between said carburetor andsaid cylinder, throttle valve actuating means, an

equalizing bar pivoted upon said throttle valve actuating means andpivotally associated with said throttle valve, a manipulating memberassociated with said fuel control valve and pivoted to the end portionof said equalizing bar opposite said throttle actuating means, resilientmeans normal- 1y holding said manipulating member to locate said fuelcontrol valve inthe open position of said fuel supply line and saidequalizing bar to allow buretor including a said throttle valve to besubject to manipulations of said throttle actuating means, and meansoperative only when said throttle actuating means is in the idlingposition of said engine and the engine is being operated by a forceother than explosion of mixture in said cylinder for actuating saidmanipulating member against the action of said resilient means to movesaid fuel control valve to close said fuel supply line and tosimultaneously move said throttle valve to the open position of saidintake manifold.

8. In an internal combustion engine, a carburetor including a fuelsupply line and an air inlet, a cylinder, an intake manifold betweensaid carburetor and cylinder, a fuel control valve in said fuel supplyline, a throttle valve in said intake manifo between said carburetor andsaid cylinder, ottle valve actuating means and pivotally associated withsaid throttle valve, a manipulating member associated with said fuelcontrol valve and pivoted to the end portion of said equalizing baropposite said throttle actuating means, resilient means normally holdingsaid manipulating member'to locate said fuel control valve in the openposition of said fuel supply line andsaid equalizing bar to allow saidthrottle valve to be subject to manipulations of said throttle actuatingmeans, and means operative. only when said in the idlingposition of saidengine and the engine is being operated by a force other than explosivemixture in said cylinder for actuating said manipulating member againstthe action of saidresilient means to move said fuel control valve toclose said fuel supply taneously move said throttle valve to the openposition of said intake manifold, said last mentioned means beingadapted to means to act to cause said manipulating member to return saidfuel control valve to the open po-' sition of said fuel supply line andallow said throttle valve to be again subject to actuations force otherthan explosive mixture ceases to operate said engine or when saidthrottle actuating means is advanced.

9. The combination as specified in claim '7, wherein the resilient meansnormally holding said manipulating member to locate said fuel controlvalve in the open position of said fuel supply. line and said equalizingbar to allow said throttle valve to be subject to manipulations of saidthrottle actuating means wherein said means operative only when saidthrottle actuating means is in the idling position of said engine andthe engine is being operated by a force other than explosive mixture insaid cylinder for actuating said manipulating member to move saidi fuel'control valve to close said fuel supply line and to simultaneously movesaid throttle valve manifold is amagnet with pivoted armatureassociatedwith said manipulating bar.

ignition circuit, meansfor closing said ignition circuit when said fuelcontrol valve is in the open position of said fuel supply line, andmeans for breaking saidignition circuit when said fuel control valve isin the closed position of said fuel supply line.

11. In an internal combustion engine, a carfuel supply'line and an airinlet, a cylinder, an intake manifold between said carburetor andcylinder, 9, fuel control valve in mass means, an equaliz- I ing barpivoted upon said throttle valve actuating position of said intake.

throttle actuating means is line and to simulallow said resilient ofsaid throttle actuating means either when said is a spring, and

to open position of said intake 10. The combination as specified inclaim '7, an

said fuel supply line, a throttle vahw in said intake manifold betweensaid carburetor and said 0: 1- inder, throttle valve actuating means. anequalizing bar pivoted upon said ating means and pivotally associatedwith said throttle valve, a manipulating member associated with saidfuel control valve and pivoted to the end port-ion of said equalizingbar opposite said throttle valve actu-- throttle actuating means,resilient means normally holding said manipulating member to locate saidfuel control valve in the open said fuel supply line and said equalizingbar to allow said throttle valve to be subject to manipulations of saidthrottle actuating means, and means operative only when said throttleactuating means is in the idling position of said engine and the engineis being operated by a force other than explosive mixture in saidcylinder for actuatin said manipulating member against the action ofsaid resilient means to move said fuel control valve to close said fuelsupply line and to simultaneously move said throttle valve to the openmanifold, said last mentioned means including a pivoted armature, amagnet having said'armature, a circuit in which said magnet is arranged,and a lever fixed to'move with said armature and associated with saidmanipulating member. 12. In an internal combustion engine. a carburetorincluding a fuel supply line and an air inlet, a cylinder, an intakemanifold between said carburetor and cylinder, said fuel supply line, athrottle valve in said intake manifold between said carburetor andcylinder, throttle valve actuating means, an equalizing barpivoted uponsaid throttle valve actuating means and pivotally associated with saidthrottle valve, a manipulating member associated with said fuel controlvalve and pivoted to the end portion of said equalizing bar oppo-' sitesaid throttle actuating means, resilient means normally holdin locatesaid fuel control valve in the open position of said fuel supply lineand said equalizing bar to allow said throttle valve to be subject tomanipulations means operative only when said throttle actuating means isin the idling position of. said engine and the engine is being operatedby a force other than explosive mixture in said cylinder for actuatingsaid manipulating member against the action of said resilient means tomovesaid fuel control valve to'close said fuel supply line and tosimultaneously move said throttle valve to open said intake manifold tothe atmosphere, said last mentioned means including a pivoted armature,a magnet having said said magnet is arranged, and a leverfixed to movewith said armature and associated with said manipulating member, fixedmembers of a switch in ,said circuit, and a switch member movable withsaid throttle valve actuating means and adapted to engage said fixedmembers of said circuit to shunt said circuit from said magnet when saidthrottle valve actuating means is moved from its idling toward itsadvanced position.

13. The combination as specified in claim 12, an ignition circuit havingfixed switch members, and a switch member movable with said armature andadapted to engage said fixed members ,of

said ignition circuit to make said ignition circuit when said fuelcontrol valve is in the open position of said fuel supply ject tomanipulations of said throttle valve actua fuel control valve in saidmanipulating member to armature, a circuit in which i position of ofsaid throttle actuating means,

/ line and said equalizing bar is 'in position to allow said throttlevalve to be subto which said equalizing. bar is pivoted, meansintermediate said throttle actuating means and said manipulating memberpivotally connecting ,said throttle valve to said equalizing bar,resilient means normally holding said manipulating mem- I 15 her at onelimit of its movement, and means for automatically advancing saidmanipulating member toward its other limit when said throttle actuatingmeans is at its throttle valve closing position and the engine is beingoperated by a force other than the ordinary explosions in its cylinders.

15. In an internal combustion engine, a throttle valve, throttle valveactuating means, resilient means normally holding said throttle valveactuating means in position to close. said throttle valve, an equalizingbar pivoted upon said throttle valve actuating. means, a movablemanipulating member to which said equalizing bar is pivoted, meansintermediate said throttle actuating means and said manipulating memberpivotally connecting said throttle valve to said equalizing bar,resilient means for holding said manipulating member in its normalposition at one limit of its movement, and means for automaticallyadvancing said manipulating member when said throttle actuating means isat its throttle valve closing position and the engine is being operatedby a force other than the ordinary explosions in its cylinders, saidthrottle valve being adapted to be manipulated by said throttle valveactuating means when said manipulating member is in its normal position,and said throttle valve being adapted to move to wide open position whensaid manipulating member is automatically advanced.

18. In an internal combustion engine, throttle actuating means,resilient means normally holding said throttle actuating means inretarded position, a valve manipulating member, resilient means normallyholding said manipulating member in retarded position, means foradvancing said manipulating member at. times when said throttleactuating means is in retarded position, said last mentioned meansincluding an electric circuit having a magnet with pivoted armaturelperatively connected with said manipulating means, spaced apart fixedcontact members in said circuit, said contact members being insulatedfrom each other, and'a movable contact member adapted to ,bridge saidfixed contact members when said throttle actuating means is advancedfrom idling toward advanced position to shunt the circuit from saidmagnet.

3 17. In an internal combustion engine, throttle actuating means,resilient means normally holding said throttle actuating means in idlingposition, "a valve manipulating member, resilient means normally holdingsaid manipulating membelin the normal working position of said engine,

-means for moving said manipulating member to make said engineinoperative at times when said throttle actuating means is in idlingposition, said last mentioned means including an electric circult, amagnet in said circuit, a pivoted armature for said magnet, and aconnection between said armature andsaid manipulating member, and

means for shunting said circuit from said magnet when said throttleactuating means is moved from idling toward advanced position, saidcircuit shunting means including spaced apart fixed contact members insaid circuit, and a movable con- 5 tact member associated with saidthrottle actuating means and adapted to bridge said fixed contactmembers,

18. The combination as specified in claim 17,

' an ignition circuit including a fixed contact 10 fixed, a lever fixedupon said shaft and associated with said manipulating member, a secondshaft about the shaft first mentioned, a lever fixed to said secondshaft and associated with said throttle actuating means, spaced apart,fixed contact members in said electric circuit, and a contact memberfixed upon said shaft having said lever associated withsaid throttleactuating means and adapted to bridge said spaced apart, fixed contactmembers of said electric circuit.

20. In an internal combustion engine, throttle actuating means, a valvemanipulating member, an electric circuit including a magnet having anarmature, a shaft upon which said armature is fixed, a lever fixed uponsaid shaft and associated with said manipulating member, a second shaftabout the shaft first mentioned, a lever fixed to said second shaft andassociated with said throttle actuating means, spaced apart, fixedcontact members in said electric circuit, an ignition circuit, one ofthe fixed contact members of said magnet circuit being in said ignitioncircuit,

a second fixed contact member in said ignition circuit and spaced fromsaid one fixed contact member of said magnet circuit, a contact memberfixedupon said shaft having said lever associated with said throttleactuating means and adapted to bridge said spaced apart, fixed contactmembers of said electric circuit having said magnet, and a contactmember fixed to move with said armature and adapted to bridge saidspaced apart, fixed contact .members of said ignition circuit.

21. In an internal combustion engine, the combination of a-fuel and airmixing device, a cylinder, a conduit between the mixing device andcylinder, automatic means for cutting oi the supply of fuel to thecylinder when the speed of the engine exceeds the normal idling speeds,and means for disabling said fuel cut-oil. means when Y the enginespeedis above the idling speeds, said automatic cut-off means including anelectric circuit, a rotatably mounted armature, an electromagnet havinga field when energized for causing rotation of said armature, a valvemoved by the 22. In an internal combustion engine, the combination of'acylinder, a carburetor for supplying fuel to said cylinder, a conduitintermediate the carburetor and cylinder, a valve fonvarylng the amountof fuel supplied from said carburetor;

' control means for moving the valve to position I to cut off the supplyof fuel to the cylinder, said control means being operative only whenthe speed of the engine is above idling speeds and the engine is beingdriven by forces other than those derived from fuel in the cylinder, anignition circuit, and means for disabling said valve control means andclosing said ignition circuit.

23. In an internal combustion engine, the combination of a. cylinder,means for supplying fuel to said cylinder, a valve for controlling thesupply of fuel to the cylinder, control means for moving the valve to aposition to cut off the supply of fuel to the cylinder, said controlmeans being operative only when the speed of the engine is above idlingspeed and the engine is being driven by forces other than those derivedfrom the explosion of fuel in the cylinder.

24. In combination with an internal combustion engine, electricallyoperated means for cutting ofi the flow of fuel to cylinder ofthe enginewhen the throttle actuat g means is moved to throttle closing position,and means for automatically rendering such means inactive when theengine reaches idling speed.

25. In combination with an internal combustion engine and a liquid fuelline to said engine,

means working in said liquid fuel line and for bringing about adiscontinuance of the flow of liquid fuel through said line when theaccel- A erator is moved to closing position, and means for 'renderingsuch means ineffective when the e gine reaches idling speed.

26. In combination with an internal combustion engine and a liquid fuelline to said engine, means working in said liquid fuel line andoperative when the accelerator is moved to closing position to bringabout a, reduction in the quantity of liquid fuel fed through said lineto a point where the liquid fuel fed is insufficient for the needs ofthe engine when idling, and means for rendering such means ineffectivewhen the .engine reaches idling speed.

27. In combination with an internal combustion engine including a membercontrolling the fuel supply to the engine and shiftable between aretarded position where the engine is fed an idling charge and advancedpositions, means working in said liquid fuel line for cutting ofl theflow of fuel to a cylinder of the engine when said member is permittedto return to retarded position, and means for rendering such means,ineffective when the engine reaches idling. speed.

LESTER H. MESSINGER, JR. A. LAWRENCE BIKER Assignee of Andrew L. Riker,Deceased.

